Search Issue Tracker
Fixed in 2021.2.X
Fixed in 2019.4.X, 2020.3.X, 2021.1.X
Votes
0
Found in
2018.4
2019.4
2019.4.14f1
2020.2
2021.1
2021.2
Issue ID
1296365
Regression
No
ParticleSystem.Prewarm is caused when calling ParticleSystem.Simulate even if "PreWarm" option is disabled on the ParticleSystem
How to reproduce:
1. Open the attached project's Scene labeled "SampleScene"
2. Enter the Play Mode
3. Press the "Space" key
4. Open up the Profiler Window (Window->Analysis->Profiler)
5. In the Profiler, search for "ParticleSystem.Prewarm"
Expected result: "ParticleSystem.Prewarm" is not found
Actual result: Simulating Particle System in Late Update causes a prewarm
Reproducible with: 2018.4.31f1, 2019.4.18f1, 2020.2.3f1, 2021.1.0b4, 2021.2.0a3
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Shader warning in 'Hidden/Core/DebugOccluder' thrown after building High Definition 3D Sample Template
- Audio Mixer “+” buttons overlap with UI when the Audio Mixer window layout is set to Horizontal
- "Clear" button in the "Set project display name" closes all the pop-up instead of clearing just a name from the field
- Video Player renders no video on specific devices when using Vulkan
- The Editor slows itself down by showing tons of warnings when the majority of TransformAccessArrays content are NullRefs
Resolution Note (fix version 2021.2):
Simulate was incorrectly labelled as Prewarm in the profiler. Fixed in Unity 2021.2.0a5 and above
Resolution Note (fix version 2021.1):
Fixed in Unity 2021.1.0f1
Resolution Note (fix version 2020.3):
Fixed in Unity 2020.3.5f1
Resolution Note (fix version 2019.4):
Fixed in Unity 2019.4.26f1